Nova The season premiere celebrates NASA's Kepler telescope discovery of thousands of exo-planets orbiting other stars, including some that may be able to harbor life. 9 p.m. KOCE

Psych In the season premiere, Shawn and Gus (James Roday, Dulé Hill) are in London, where they have another encounter with a notorious art thief (Cary Elwes). Corbin Bernsen, Maggie Lawson and Timothy Omundson also star. 9 p.m. USA